Oil-burner.



H. F. RUSSEN.

OIL BURNER.

APPLICATION FILED 313.16, 1909.

Patented Fen 22, 1910 3140a uh):

librlllli 1i HENRY F. RUSSEN, OF FRANKLIN, MASSACHUSETTS.

OIL-BURNER.

Specification of Letters Patent.

Applieation filed February 1 6, 1909. Serial No. 478,205.

To all whom it may concern:

Be it known that I, HENRY F. RUSSEN,

citizen of the United States, residing at Franklin, in the county of Norfolk and State of Massachusetts, have invented certain new and useful Improvements in Oil- Burners, of which the following is a specification. This invention relates to oil and gaseous fuel burners and has particular reference to an oil burner to be employed in connection with welding" furnaces.

An object of this invention is to produce an oil burner which will produce a fine spray of the combined oil and air, or oil and steam, and to distribute he spray over a great area to increase the heating capacity of the burner, and thus obtain a higher temperature within the furnace in proportion to the amount of fuel consumed than in burners of common form now in usef Another object of this invention is to construct a burner in which the oil and air will be more thoroughly mixed and which will thereby cause a uniform flame which is ditlused throughout .the furnace and which will prevent the excessive heating of any particular part thereof; thus eliminating to a great degree the expense in maintaining furnaces of this character by reason of the necessity of relining the same incident to the overheating and burning out of the brick.

The invention further aims to produce a burner of this character which is composed of few parts which can be economically manuf'zuctured, and one which may be maintaincd at less expense and with less care than burners heretofore employed and also aims to produce a burner which can be *asily regulated.

For a full understanding of the invention reference is to be had to the following description and accompanying drawing in which z Figure 1 is a longitudinal. section through the complete burner, Fig. 2 is a transverse section on the line 2-2 of Fig. 1. Fig. 3 is a detailed perspective view of the forward end of the valve steln.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawing by the same reference characters.

It ferring to the drawing, the numeral designates an elongated cas ng which is of cylindrical formation and which is provided adjacent its rear end with oppositely and laterally extended sections 115 and 12 to which are adapted to be attached the oil pipe 13 and the air pipe 14 respectively. The section 11 is terminated interiorly of the casing 10 in a chamber which is formed by means of a web 15 which is disposed in the casing 10 and which separates the section 11 from the section 12. The section 12 opens into the casing 10 to conduct the air from the pipe 11 directly into the casing 10 and to admit of the flow of the air into the forward end of the casing where the air passes through a plurality of ports 16 formed in the side of a hollow stem 17. The stem 17 is positioned longitudinally within the easing 10 and also extends through the oil chamber formed at the inner end of the section 11. A stem 17 is snugly fitted in an aperture formed in the web 15 and a tight joint is obtained by the provision of a suitable packing gland 15 The stem 17 is further provided with a plurality of openings 18, the same being formed within the oil chamber and provided for the purpose of connecting the interior of the stem 17 with "the section 11.

The casing 10 is provided at its rear extremity with a cap 19 which is inserted therein and retained in threaded engagementtherewith. The rear extremity of the stem 17 is engaged through the cap 19 in threaded engagement therewith, the threads carried by the cap and the stem being of a coarse pitch in order to impart to the stem 17 alongitudinal movement upon the rotation of the same. A stuffing-box 20 is carried by the cap 19 and surrounds the 'rear extremity of the stem 17 to prevent the passage of air or oil which would othe wise pass between the same. The stem 17 is actuated by a suitable hand-whee] 22 which is rigidly mounted upon the rear end of the same and within reach of the operator.

The forward end of the casing 10 is provided with an annular flange 23 which is formed exteriorly thereon and serves as an abutment for the outer face of a fi1l11flCO,O1

the like, into which theimproved burner is projected. l orwardly'of the flange 23 the casing 10 is reduced as at 24: and carries an integrally formed sleeve 23 which is provided with av recess formed annularly in the outer face of the same fop the reception of a threaded web 25 which is carried integrally Patented Feb. 22, 1910..

, sage from tie casin .the stem 17.

which engage with internal threads formed upon the inner end of a nozzle 26. The Web 25 is provided with external threads upon the outer section of the sleeve 25 and forms a means for connecting the nozzle 26 to the casin 10 as Well as to close the pas- 10 to the interior of" the nozzle 26 by forcing a packing gland 26- into a suitable packing box formed in the outer end of the casing 10 The nozzle 26 comprises a cylindrical hollow member which is enlarged at its rear extremity and provided with the web 25 as hereinbefore set forth, the intermediate portion of the nozzle 26 being snugly engaged 3 over" the forward end 01 the stem. 17. The outer end of the nozzle 26 is flared as at 27 and is provided with an inwardly extended shoulder 28 which is annularly formed upon the nozzle 26 and adapted for engagement with a conical valve 29 formed upon the forward extremity of the stem 17. conical valve 29 is carried upon the forward 3 end of a web 2S) which. is extended from the l end of the stem 17, the valve 29 having a uniform cylindrical portion located rear- Wardly and adjacent the conical portion of the valve 29 which forms shoulders upon the opposite sides of the web 29 and serves todeflect the oil and air which tlow from openings 29 formed through the forward wall of I A conical bead 30'is formed upon the outer end of the valve 29 to form a I second annular shoulder to further deflect the fuel from the nozzle 26.

It will be noted from Fig. l of the drawing that the bead 30 is located outwardly .of the shoulder 28 and that the fuel which flows j past. the shoulder 28 and over the conical surface of the valve 2!) is deflected by the head 30 against the tlarcd portion 27 of the I t I 1 nozzle 26 and is caused to spray into the turnacc over a considerable area.

'In the operation of the burner compressed air is introduced into the casing 10 through I the pipe t and section 12 where it is forced through the openings 10 into -the stem 1.7.

l rom the stem L? the air is forced through j the openings 2!)" and through the valve 29 and nozzle 26. This action of the air causes i i. t a suction within the rear end of the stem 1.; 1 whereupon oil from the pipe lil'hnd section 1 11. is drawn through the openii'igs l8 intol the stem and mixed with air. As the oil and air pass through the openings 29 -and l strike the shoulders at the rear of the valve 2.) the same are deflected outwardly against l the inner wall of the nozzle 26 and caused to thoroughly coi'nbine when they are further, carried )ast the shoulder 28 about the con 1 ical sur ace of theyalve 29 and finally de- The tlected against the flared portion 27 by the bead 30. It is thus obse'ved that a tortuous passage is formed through the inner end of the burner whereupon the'air and oil are caused to thoroughly mix and thus produce a fuel which is. highly etlicient as the same is provided with a large percentage of oxygen.

I t readily seen that a burner of this construction is composed of but few'operative parts which are so formed as to co-act and to produce an efiicient and readily operated burner which causes a complete atomizing of the oil and feeds the same forwardly in a ni'iit'orm and widespread flame.

Having thus described the invention what end thereof, a nozzle detachably supported upon said sleeve and engaged about the forward extremity of said stem, a web positioncd in said casing to form an oil chamber about the oil inlet, said stem being engaged through said web and having openings t'ormcd inwardly of the same, said stem also liavingports forn'ied intermediately of the same and opening into said casing, a conical valve carried upon the forward end of said stem, and a bead located upon the extremity of said valve, said stein having openings formed oppositely in the forward wall thereof rearwardly olf said valve.

2. A burner including a casing, a nozzle carried by said casing, a hollow stein mounted in said casing and said nozzle for relative adpistment therein, a web positioned in said 'casing about said stem to form an oil cham- 

